Blocks for building construction.



F. BURGHARTZ. BLOCKS POR BUILDING CONSTRUCTION.

, APPLIoATIoN FILED AUG. 4, 1910.

1,(`).9,530.l v PatentedJune 11,1912.

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WTNESSES: l/V VE N TOI? yp W, ffHg/A/Al/va BURC/MHH e A2o and the crossvchannels 5 of blocks?) as well as into the .angular recesses betweenadjacent edges of the blocks 3 and sections 1.

It' will be observed thatthe sections l in each row do not abut, andlikewise that the flanged extensions 5 of two rows of blocks 3 do notabut. open spaces 8, which permit of the intro-v duction of the tie-rods,6 and 7 and which in the completed floor are finally also lilled withconcrete. Thus the concrete in these spaces 8 locks the channel sections1, 1, in their predetermined positions. 'After this concrete has set orhardened the temporary centering is removed leavingthe complete fireroof oor or ceilingin position. By maklng the sections l and the hollowblocks 3 separate these parts are easily and cheaply manufactured andwhen assembled as described, form a complete hollow lblock which isreproof, light in construction and also extremely strong and capable ofsustaining great weight.

' It will be understood that changes in the specific constructions,shown and described may be made within the scope of the claimsv withoutdeparting from the spirit of my invention.I

This application is a division of my application for United StatesLetters Patent for 'block for building. construction which applicationhas been filed by me on November 2, 1909, Serial I claim: 1. In a floor.construction, the combination of open ended blocks arranged in alinementin intersecting rows, and spaced from each other, channel blocksseparate from said open ended blocks, and substantially U-shaped incross section, located between and closing the open'ends of said openended blocks, and forming substantially continuous channels and avcoalescent material in said channels.

No.y 525,878.

2. In a floor construction, the combination of open ended blocksarranged in ahnementv in 'intersecting rows, and spaced from each other,channel blocks separatefrom said open ended blocks and substantially U-shaped in I'cross section, located between and.

closing'the open ends of said open ended blocks and 'formingsubstantially continuous channels, said channel blocks terminating.

below the upper surfaces of said open ended blocks, and a coalescentmaterial in said channels and extending over the tops of the channelblocks.

3. In a floor construction, the combination of open ended blocksarranged in alinement in intersecting rows and spaced from each other,channel blocks Aseparate from said open ended blocks and substantiallyU- shaped in cross sect-ion,'located`between and closing the open endsof said open ended Between these are formedv blocks and formingsubstantially. Continuous channels..said channel blocksbeing shorterthan said open ended blocks and a coalescent material in said channelsand extendin over the ends of the channel blocks.

4. In a floor construction, the combination of open endedblocks'arranged in alinement vin intersecting rows and spaced from eachother, channel blocks, separate from said openended blocks, andsubstantially U- shaped in cross section, located between and closingthe .open ends of said open ended blocks and forming substantiallycontinuous channels, said channel blocks terminating below the uppersurfaces of and being shorter than'saidopen ended blocks and acoalescent material in said channels and eX- tending over the tops andends of the chan` f nel blocks. s

5. Ina floor construction, the combination of openended blocksarranged'in intersecting rows and spaced from each other, channeledclosure blocks located between and closing the openv ends.- of said open-ended blocks, said closure blocks vbeing arranged in longitudinal'alinement with each other in rows to form substantially continuouschannels, and having the 'opposed ends ofthe closure blocks 'in each rowspaced from each other, and a coalescent material extending into saidchannels andvinto the spaces between said opposed ends of said closureblocks.

6. In a floor construction, the combination of open ended blocksarranged in intersect@ 'I ing rows, means for spacing said blocks apartin one direction, channeled closureV blocks for closing the open ends ofsaid open ended blocks and for spacing them apart in and in the channelsof the-closure blocks, said coalescent material also extending bertweenthe. ends of the spacing means, and

.the ends of the closure blocks for preventing displacement thereof.

7. In a reproof floor construction, the combination with hollow paneltile having open ends and spaced apart longitudinally and transverselyandA arranged in longitud inal and transverse rows, channel tileexanother direction, and a coalescent material. in the spaces betweensaid open ended blocks tending transversely between and closing thehollows of said panel tile, a network of lon- In testimony whereof Ihave hereunto .set gtudnal and transverse concrete ribs filling my handin the presence of two subscrlbmg 10 said channel tile and the spacesbetween the Witnesses. l y

sides of said panel tile and tensile acting l reinforcements for said7concrete ribs, said .FERDINAND BURCHARTZ' reinforcements extending bothlon tud- Witnesses: nelly and transversely, substantie, ly as n O'l'r`ov. SCHRENK,

specified. FRANK F. KIRKPATRICK.

